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record transaction fees #10715

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Dec 17, 2024
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2 changes: 1 addition & 1 deletion packages/fast-usdc/src/exos/settler.js
Original file line number Diff line number Diff line change
Expand Up @@ -260,7 +260,7 @@ export const prepareSettler = (
repayer.repay(settlingSeat, split);

// update status manager, marking tx `SETTLED`
statusManager.disbursed(txHash);
statusManager.disbursed(txHash, split);
},
/**
* @param {EvmHash} txHash
Expand Down
64 changes: 34 additions & 30 deletions packages/fast-usdc/src/exos/status-manager.js
Original file line number Diff line number Diff line change
@@ -1,14 +1,15 @@
import { M } from '@endo/patterns';
import { Fail, makeError, q } from '@endo/errors';
import { makeTracer } from '@agoric/internal';
import { appendToStoredArray } from '@agoric/store/src/stores/store-utils.js';
import { AmountKeywordRecordShape } from '@agoric/zoe/src/typeGuards.js';
import { Fail, makeError, q } from '@endo/errors';
import { E } from '@endo/eventual-send';
import { makeTracer, pureDataMarshaller } from '@agoric/internal';
import { M } from '@endo/patterns';
import { PendingTxStatus, TerminalTxStatus, TxStatus } from '../constants.js';
import {
CctpTxEvidenceShape,
EvmHashShape,
PendingTxShape,
} from '../type-guards.js';
import { PendingTxStatus, TerminalTxStatus, TxStatus } from '../constants.js';

/**
* @import {MapStore, SetStore} from '@agoric/store';
Expand Down Expand Up @@ -48,6 +49,7 @@ const pendingTxKeyOf = evidence => {
/**
* @typedef {{
* log?: LogFn;
* marshaller: ERef<Marshaller>;
* }} StatusManagerPowers
*/

Expand All @@ -66,6 +68,7 @@ export const prepareStatusManager = (
zone,
txnsNode,
{
marshaller,
log = makeTracer('Advancer', true),
} = /** @type {StatusManagerPowers} */ ({}),
) => {
Expand Down Expand Up @@ -102,14 +105,25 @@ export const prepareStatusManager = (
/**
* @param {EvmHash} txId
* @param {TransactionRecord} record
* @returns {Promise<void>}
*/
const publishTxnRecord = (txId, record) => {
const publishTxnRecord = async (txId, record) => {
const txNode = E(txnsNode).makeChildNode(txId, {
sequence: true, // avoid overwriting other output in the block
});
void E(txNode).setValue(
JSON.stringify(pureDataMarshaller.toCapData(record)),
);

// XXX awkward for publish* to update a store, but it's temporary
if (record.status && TerminalTxStatus[record.status]) {
// UNTIL https://github.com/Agoric/agoric-sdk/issues/7405
// Queue it for deletion later because if we deleted it now the earlier
// writes in this block would be wiped. For now we keep track of what to
// delete when we know it'll be another block.
storedCompletedTxs.add(txId);
}

const capData = await E(marshaller).toCapData(record);

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side note: This adds a round-trip to the board vat; I'm curious whether it has a noticeable / measurable performance impact. Here's hoping I/we measure that in...

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💯

await E(txNode).setValue(JSON.stringify(capData));
};
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why await the setValue?

I'm fuzzy on our void vs await conventions.

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the function has to be async to get capData before stringifying it.

this final await is just to provide the option to the caller to await that part. All the consumers use void now but voiding here wouldn't change the need for that.


/**
Expand All @@ -124,22 +138,6 @@ export const prepareStatusManager = (
);
};

/**
* @param {CctpTxEvidence['txHash']} hash
* @param {TxStatus} status
*/
const publishStatus = (hash, status) => {
// Don't await, just writing to vstorage.
void publishTxnRecord(hash, harden({ status }));
if (TerminalTxStatus[status]) {
// UNTIL https://github.com/Agoric/agoric-sdk/issues/7405
// Queue it for deletion later because if we deleted it now the earlier
// writes in this block would be wiped. For now we keep track of what to
// delete when we know it'll be another block.
storedCompletedTxs.add(hash);
}
};

/**
* Ensures that `txHash+chainId` has not been processed
* and adds entry to `seenTxs` set.
Expand All @@ -164,7 +162,7 @@ export const prepareStatusManager = (
publishEvidence(txHash, evidence);
if (status !== PendingTxStatus.Observed) {
// publishEvidence publishes Observed
publishStatus(txHash, status);
void publishTxnRecord(txHash, harden({ status }));
}
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does void mean "I'm certain this never rejects" or "if it rejects, there's nothing useful I can do, so I might as well let standard unhandled rejection logging do its thing"?

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the latter

};

Expand All @@ -187,7 +185,7 @@ export const prepareStatusManager = (
];
const txpost = { ...tx, status };
pendingTxs.set(key, harden([...prefix, txpost, ...suffix]));
publishStatus(tx.txHash, status);
void publishTxnRecord(tx.txHash, harden({ status }));
}

return zone.exo(
Expand All @@ -212,7 +210,9 @@ export const prepareStatusManager = (
M.undefined(),
),
),
disbursed: M.call(EvmHashShape).returns(M.undefined()),
disbursed: M.call(EvmHashShape, AmountKeywordRecordShape).returns(
M.undefined(),
),
forwarded: M.call(M.opt(EvmHashShape), M.string(), M.nat()).returns(
M.undefined(),
),
Expand Down Expand Up @@ -313,9 +313,13 @@ export const prepareStatusManager = (
* Mark a transaction as `DISBURSED`
*
* @param {EvmHash} txHash
* @param {import('./liquidity-pool.js').RepayAmountKWR} split
*/
disbursed(txHash) {
publishStatus(txHash, TxStatus.Disbursed);
disbursed(txHash, split) {
void publishTxnRecord(
txHash,
harden({ split, status: TxStatus.Disbursed }),
);
},

/**
Expand All @@ -327,7 +331,7 @@ export const prepareStatusManager = (
*/
forwarded(txHash, nfa, amount) {
if (txHash) {
publishStatus(txHash, TxStatus.Forwarded);
void publishTxnRecord(txHash, harden({ status: TxStatus.Forwarded }));
} else {
// TODO store (early) `Minted` transactions to check against incoming evidence
log(
Expand Down
1 change: 1 addition & 0 deletions packages/fast-usdc/src/fast-usdc.contract.js
Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,7 @@ export const contract = async (zcf, privateArgs, zone, tools) => {
const statusManager = prepareStatusManager(
zone,
E(storageNode).makeChildNode(TXNS_NODE),
{ marshaller },
);

const { USDC } = terms.brands;
Expand Down
2 changes: 2 additions & 0 deletions packages/fast-usdc/src/types.ts
Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,7 @@ import type { Amount } from '@agoric/ertp';
import type { CopyRecord, Passable } from '@endo/pass-style';
import type { PendingTxStatus, TxStatus } from './constants.js';
import type { FastUsdcTerms } from './fast-usdc.contract.js';
import type { RepayAmountKWR } from './exos/liquidity-pool.js';

export type EvmHash = `0x${string}`;
export type EvmAddress = `0x${string & { length: 40 }}`;
Expand Down Expand Up @@ -40,6 +41,7 @@ export interface CctpTxEvidence {
*/
export interface TransactionRecord extends CopyRecord {
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This type could be more precise. It could be a union that requires evidence in OBSERVED and split in DISBURSED.

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could be. I went this way to maintain the option to include these any time.

evidence?: CctpTxEvidence;
split?: RepayAmountKWR;
status: TxStatus;
}

Expand Down
20 changes: 13 additions & 7 deletions packages/fast-usdc/test/exos/advancer.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import { type ZoeTools } from '@agoric/orchestration/src/utils/zoe-tools.js';
import { q } from '@endo/errors';
import { Far } from '@endo/pass-style';
import type { TestFn } from 'ava';
import { makeTracer } from '@agoric/internal';
import { PendingTxStatus } from '../../src/constants.js';
import { prepareAdvancer } from '../../src/exos/advancer.js';
import type { SettlerKit } from '../../src/exos/settler.js';
Expand All @@ -26,6 +27,8 @@ import {
} from '../mocks.js';
import { commonSetup } from '../supports.js';

const trace = makeTracer('AdvancerTest', false);

const LOCAL_DENOM = `ibc/${denomHash({
denom: 'uusdc',
channelId:
Expand All @@ -50,6 +53,7 @@ const createTestExtensions = (t, common: CommonSetup) => {
const statusManager = prepareStatusManager(
rootZone.subZone('status-manager'),
storageNode.makeChildNode('txns'),
{ marshaller: common.commonPrivateArgs.marshaller },
);

const mockAccounts = prepareMockOrchAccounts(rootZone.subZone('accounts'), {
Expand All @@ -74,7 +78,7 @@ const createTestExtensions = (t, common: CommonSetup) => {
};
const mockZoeTools = Far('MockZoeTools', {
localTransfer(...args: Parameters<ZoeTools['localTransfer']>) {
console.log('ZoeTools.localTransfer called with', args);
trace('ZoeTools.localTransfer called with', args);
return localTransferVK.vow;
},
});
Expand All @@ -99,7 +103,7 @@ const createTestExtensions = (t, common: CommonSetup) => {
const notifyAdvancingResultCalls: NotifyArgs[] = [];
const mockNotifyF = Far('Settler Notify Facet', {
notifyAdvancingResult: (...args: NotifyArgs) => {
console.log('Settler.notifyAdvancingResult called with', args);
trace('Settler.notifyAdvancingResult called with', args);
notifyAdvancingResultCalls.push(args);
},
});
Expand Down Expand Up @@ -167,7 +171,7 @@ test.beforeEach(async t => {
test('updates status to ADVANCING in happy path', async t => {
const {
extensions: {
services: { advancer, feeTools, statusManager },
services: { advancer, feeTools },
helpers: { inspectLogs, inspectNotifyCalls },
mocks: { mockPoolAccount, resolveLocalTransferV },
},
Expand Down Expand Up @@ -235,7 +239,7 @@ test('updates status to OBSERVED on insufficient pool funds', async t => {
brands: { usdc },
bootstrap: { storage },
extensions: {
services: { makeAdvancer, statusManager },
services: { makeAdvancer },
helpers: { inspectLogs },
mocks: { mockPoolAccount, mockNotifyF },
},
Expand Down Expand Up @@ -283,13 +287,14 @@ test('updates status to OBSERVED if makeChainAddress fails', async t => {
const {
bootstrap: { storage },
extensions: {
services: { advancer, statusManager },
services: { advancer },
helpers: { inspectLogs },
},
} = t.context;

const evidence = MockCctpTxEvidences.AGORIC_UNKNOWN_EUD();
await advancer.handleTransactionEvent(evidence);
await eventLoopIteration();

t.deepEqual(
storage.getDeserialized(`fun.txns.${evidence.txHash}`),
Expand All @@ -310,7 +315,7 @@ test('calls notifyAdvancingResult (AdvancedFailed) on failed transfer', async t
const {
bootstrap: { storage },
extensions: {
services: { advancer, feeTools, statusManager },
services: { advancer, feeTools },
helpers: { inspectLogs, inspectNotifyCalls },
mocks: { mockPoolAccount, resolveLocalTransferV },
},
Expand Down Expand Up @@ -363,14 +368,15 @@ test('updates status to OBSERVED if pre-condition checks fail', async t => {
const {
bootstrap: { storage },
extensions: {
services: { advancer, statusManager },
services: { advancer },
helpers: { inspectLogs },
},
} = t.context;

const evidence = MockCctpTxEvidences.AGORIC_NO_PARAMS();

await advancer.handleTransactionEvent(evidence);
await eventLoopIteration();

t.deepEqual(
storage.getDeserialized(`fun.txns.${evidence.txHash}`),
Expand Down
5 changes: 3 additions & 2 deletions packages/fast-usdc/test/exos/settler.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import type { TestFn } from 'ava';
import { eventLoopIteration } from '@agoric/internal/src/testing-utils.js';
import fetchedChainInfo from '@agoric/orchestration/src/fetched-chain-info.js';
import type { Zone } from '@agoric/zone';
import { defaultMarshaller } from '@agoric/internal/src/storage-test-utils.js';
import { PendingTxStatus } from '../../src/constants.js';
import { prepareSettler } from '../../src/exos/settler.js';
import { prepareStatusManager } from '../../src/exos/status-manager.js';
Expand Down Expand Up @@ -48,7 +49,7 @@ const makeTestContext = async t => {
const statusManager = prepareStatusManager(
zone.subZone('status-manager'),
common.commonPrivateArgs.storageNode.makeChildNode('txns'),
{ log },
{ marshaller: defaultMarshaller, log },
);
const { zcf, callLog } = mockZcf(zone.subZone('Mock ZCF'));

Expand Down Expand Up @@ -239,7 +240,7 @@ test('happy path: disburse to LPs; StatusManager removes tx', async t => {
{ evidence: cctpTxEvidence, status: 'OBSERVED' },
{ status: 'ADVANCING' },
{ status: 'ADVANCED' },
{ status: 'DISBURSED' },
{ split: expectedSplit, status: 'DISBURSED' },
]);

// Check deletion of DISBURSED transactions
Expand Down
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